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1 | /* | |
2 | * This file is part of the PulseView project. | |
3 | * | |
4 | * Copyright (C) 2013 Joel Holdsworth <joel@airwebreathe.org.uk> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program; if not, see <http://www.gnu.org/licenses/>. | |
18 | */ | |
19 | ||
20 | #include <extdef.h> | |
21 | ||
22 | #include <cassert> | |
23 | #include <cmath> | |
24 | ||
25 | #include <QApplication> | |
26 | #include <QFormLayout> | |
27 | #include <QKeyEvent> | |
28 | #include <QLineEdit> | |
29 | #include <QMenu> | |
30 | ||
31 | #include "ruler.hpp" | |
32 | #include "trace.hpp" | |
33 | #include "tracepalette.hpp" | |
34 | #include "view.hpp" | |
35 | ||
36 | #include "pv/globalsettings.hpp" | |
37 | #include "pv/widgets/colorbutton.hpp" | |
38 | #include "pv/widgets/popup.hpp" | |
39 | ||
40 | using std::pair; | |
41 | using std::shared_ptr; | |
42 | ||
43 | namespace pv { | |
44 | namespace views { | |
45 | namespace trace { | |
46 | ||
47 | const QPen Trace::AxisPen(QColor(0, 0, 0, 30 * 256 / 100)); | |
48 | const int Trace::LabelHitPadding = 2; | |
49 | ||
50 | const QColor Trace::BrightGrayBGColor = QColor(0, 0, 0, 10 * 255 / 100); | |
51 | const QColor Trace::DarkGrayBGColor = QColor(0, 0, 0, 15 * 255 / 100); | |
52 | const QColor Trace::ErrorBgColor = QColor(0xEF, 0x29, 0x29); | |
53 | ||
54 | Trace::Trace(shared_ptr<data::SignalBase> signal) : | |
55 | base_(signal), | |
56 | axis_pen_(AxisPen), | |
57 | segment_display_mode_(ShowLastSegmentOnly), // Will be overwritten by View | |
58 | current_segment_(0), | |
59 | popup_(nullptr), | |
60 | popup_form_(nullptr) | |
61 | { | |
62 | connect(signal.get(), SIGNAL(name_changed(const QString&)), | |
63 | this, SLOT(on_name_changed(const QString&))); | |
64 | connect(signal.get(), SIGNAL(color_changed(const QColor&)), | |
65 | this, SLOT(on_color_changed(const QColor&))); | |
66 | connect(signal.get(), SIGNAL(error_message_changed(const QString&)), | |
67 | this, SLOT(on_error_message_changed(const QString&))); | |
68 | ||
69 | GlobalSettings::add_change_handler(this); | |
70 | ||
71 | GlobalSettings settings; | |
72 | show_hover_marker_ = | |
73 | settings.value(GlobalSettings::Key_View_ShowHoverMarker).toBool(); | |
74 | } | |
75 | ||
76 | Trace::~Trace() | |
77 | { | |
78 | GlobalSettings::remove_change_handler(this); | |
79 | } | |
80 | ||
81 | shared_ptr<data::SignalBase> Trace::base() const | |
82 | { | |
83 | return base_; | |
84 | } | |
85 | ||
86 | bool Trace::is_selectable(QPoint pos) const | |
87 | { | |
88 | // True if the header was clicked, false if the trace area was clicked | |
89 | const View *view = owner_->view(); | |
90 | assert(view); | |
91 | ||
92 | return (pos.x() <= view->header_width()); | |
93 | } | |
94 | ||
95 | bool Trace::is_draggable(QPoint pos) const | |
96 | { | |
97 | // While the header label that belongs to this trace is draggable, | |
98 | // the trace itself shall not be. Hence we return true if the header | |
99 | // was clicked and false if the trace area was clicked | |
100 | const View *view = owner_->view(); | |
101 | assert(view); | |
102 | ||
103 | return (pos.x() <= view->header_width()); | |
104 | } | |
105 | ||
106 | void Trace::set_segment_display_mode(SegmentDisplayMode mode) | |
107 | { | |
108 | segment_display_mode_ = mode; | |
109 | ||
110 | if (owner_) | |
111 | owner_->row_item_appearance_changed(true, true); | |
112 | } | |
113 | ||
114 | void Trace::on_setting_changed(const QString &key, const QVariant &value) | |
115 | { | |
116 | if (key == GlobalSettings::Key_View_ShowHoverMarker) | |
117 | show_hover_marker_ = value.toBool(); | |
118 | ||
119 | // Force a repaint since many options alter the way traces look | |
120 | if (owner_) | |
121 | owner_->row_item_appearance_changed(false, true); | |
122 | } | |
123 | ||
124 | void Trace::paint_label(QPainter &p, const QRect &rect, bool hover) | |
125 | { | |
126 | const int y = get_visual_y(); | |
127 | ||
128 | p.setBrush(base_->color()); | |
129 | ||
130 | if (!enabled()) | |
131 | return; | |
132 | ||
133 | const QRectF r = label_rect(rect); | |
134 | ||
135 | // When selected, move the arrow to the left so that the border can show | |
136 | const QPointF offs = (selected()) ? QPointF(-2, 0) : QPointF(0, 0); | |
137 | ||
138 | // Paint the label | |
139 | const float label_arrow_length = r.height() / 2; | |
140 | QPointF points[] = { | |
141 | offs + r.topLeft(), | |
142 | offs + QPointF(r.right() - label_arrow_length, r.top()), | |
143 | offs + QPointF(r.right(), y), | |
144 | offs + QPointF(r.right() - label_arrow_length, r.bottom()), | |
145 | offs + r.bottomLeft() | |
146 | }; | |
147 | QPointF highlight_points[] = { | |
148 | offs + QPointF(r.left() + 1, r.top() + 1), | |
149 | offs + QPointF(r.right() - label_arrow_length, r.top() + 1), | |
150 | offs + QPointF(r.right() - 1, y), | |
151 | offs + QPointF(r.right() - label_arrow_length, r.bottom() - 1), | |
152 | offs + QPointF(r.left() + 1, r.bottom() - 1) | |
153 | }; | |
154 | ||
155 | if (selected()) { | |
156 | p.setPen(highlight_pen()); | |
157 | p.setBrush(Qt::transparent); | |
158 | p.drawPolygon(points, countof(points)); | |
159 | } | |
160 | ||
161 | p.setPen(Qt::transparent); | |
162 | p.setBrush(hover ? base_->color().lighter() : base_->color()); | |
163 | p.drawPolygon(points, countof(points)); | |
164 | ||
165 | p.setPen(base_->color().lighter()); | |
166 | p.setBrush(Qt::transparent); | |
167 | p.drawPolygon(highlight_points, countof(highlight_points)); | |
168 | ||
169 | p.setPen(base_->color().darker()); | |
170 | p.setBrush(Qt::transparent); | |
171 | p.drawPolygon(points, countof(points)); | |
172 | ||
173 | // Paint the text | |
174 | p.setPen(select_text_color(base_->color())); | |
175 | p.setFont(QApplication::font()); | |
176 | p.drawText(QRectF(r.x(), r.y(), | |
177 | r.width() - label_arrow_length, r.height()), | |
178 | Qt::AlignCenter | Qt::AlignVCenter, base_->name()); | |
179 | } | |
180 | ||
181 | void Trace::paint_error(QPainter &p, const ViewItemPaintParams &pp) | |
182 | { | |
183 | const QString message = base_->get_error_message(); | |
184 | ||
185 | const int y = get_visual_y(); | |
186 | ||
187 | p.setPen(ErrorBgColor.darker()); | |
188 | p.setBrush(ErrorBgColor); | |
189 | ||
190 | const QRectF bounding_rect = QRectF(pp.left(), INT_MIN / 2 + y, pp.right(), INT_MAX); | |
191 | ||
192 | const QRectF text_rect = p.boundingRect(bounding_rect, Qt::AlignCenter, message); | |
193 | const qreal r = text_rect.height() / 4; | |
194 | ||
195 | p.drawRoundedRect(text_rect.adjusted(-r, -r, r, r), r, r, Qt::AbsoluteSize); | |
196 | ||
197 | p.setPen(Qt::black); | |
198 | p.drawText(text_rect, message); | |
199 | } | |
200 | ||
201 | QMenu* Trace::create_header_context_menu(QWidget *parent) | |
202 | { | |
203 | QMenu *const menu = ViewItem::create_header_context_menu(parent); | |
204 | ||
205 | return menu; | |
206 | } | |
207 | ||
208 | QMenu* Trace::create_view_context_menu(QWidget *parent, QPoint &click_pos) | |
209 | { | |
210 | context_menu_x_pos_ = click_pos.x(); | |
211 | ||
212 | // Get entries from default menu before adding our own | |
213 | QMenu *const menu = new QMenu(parent); | |
214 | ||
215 | QMenu* default_menu = TraceTreeItem::create_view_context_menu(parent, click_pos); | |
216 | if (default_menu) { | |
217 | for (QAction *action : default_menu->actions()) { // clazy:exclude=range-loop | |
218 | menu->addAction(action); | |
219 | if (action->parent() == default_menu) | |
220 | action->setParent(menu); | |
221 | } | |
222 | delete default_menu; | |
223 | ||
224 | // Add separator if needed | |
225 | if (menu->actions().length() > 0) | |
226 | menu->addSeparator(); | |
227 | } | |
228 | ||
229 | QAction *const create_marker_here = new QAction(tr("Create marker here"), this); | |
230 | connect(create_marker_here, SIGNAL(triggered()), this, SLOT(on_create_marker_here())); | |
231 | menu->addAction(create_marker_here); | |
232 | ||
233 | return menu; | |
234 | } | |
235 | ||
236 | pv::widgets::Popup* Trace::create_popup(QWidget *parent) | |
237 | { | |
238 | using pv::widgets::Popup; | |
239 | ||
240 | popup_ = new Popup(parent); | |
241 | popup_->set_position(parent->mapToGlobal( | |
242 | drag_point(parent->rect())), Popup::Right); | |
243 | ||
244 | create_popup_form(); | |
245 | ||
246 | connect(popup_, SIGNAL(closed()), this, SLOT(on_popup_closed())); | |
247 | ||
248 | return popup_; | |
249 | } | |
250 | ||
251 | QRectF Trace::label_rect(const QRectF &rect) const | |
252 | { | |
253 | QFontMetrics m(QApplication::font()); | |
254 | const QSize text_size( | |
255 | m.boundingRect(QRect(), 0, base_->name()).width(), m.height()); | |
256 | const QSizeF label_size( | |
257 | text_size.width() + LabelPadding.width() * 2, | |
258 | ceilf((text_size.height() + LabelPadding.height() * 2) / 2) * 2); | |
259 | const float half_height = label_size.height() / 2; | |
260 | return QRectF( | |
261 | rect.right() - half_height - label_size.width() - 0.5, | |
262 | get_visual_y() + 0.5f - half_height, | |
263 | label_size.width() + half_height, | |
264 | label_size.height()); | |
265 | } | |
266 | ||
267 | QRectF Trace::hit_box_rect(const ViewItemPaintParams &pp) const | |
268 | { | |
269 | // This one is only for the trace itself, excluding the header area | |
270 | const View *view = owner_->view(); | |
271 | assert(view); | |
272 | ||
273 | pair<int, int> extents = v_extents(); | |
274 | const int top = pp.top() + get_visual_y() + extents.first; | |
275 | const int height = extents.second - extents.first; | |
276 | ||
277 | return QRectF(pp.left() + view->header_width(), top, | |
278 | pp.width() - view->header_width(), height); | |
279 | } | |
280 | ||
281 | void Trace::set_current_segment(const int segment) | |
282 | { | |
283 | current_segment_ = segment; | |
284 | } | |
285 | ||
286 | int Trace::get_current_segment() const | |
287 | { | |
288 | return current_segment_; | |
289 | } | |
290 | ||
291 | void Trace::hover_point_changed(const QPoint &hp) | |
292 | { | |
293 | (void)hp; | |
294 | ||
295 | if (owner_) | |
296 | owner_->row_item_appearance_changed(false, true); | |
297 | } | |
298 | ||
299 | void Trace::paint_back(QPainter &p, ViewItemPaintParams &pp) | |
300 | { | |
301 | const View *view = owner_->view(); | |
302 | assert(view); | |
303 | ||
304 | if (view->colored_bg()) | |
305 | p.setBrush(base_->bgcolor()); | |
306 | else | |
307 | p.setBrush(pp.next_bg_color_state() ? BrightGrayBGColor : DarkGrayBGColor); | |
308 | ||
309 | p.setPen(QPen(Qt::NoPen)); | |
310 | ||
311 | const pair<int, int> extents = v_extents(); | |
312 | p.drawRect(pp.left(), get_visual_y() + extents.first, | |
313 | pp.width(), extents.second - extents.first); | |
314 | } | |
315 | ||
316 | void Trace::paint_axis(QPainter &p, ViewItemPaintParams &pp, int y) | |
317 | { | |
318 | bool was_antialiased = p.testRenderHint(QPainter::Antialiasing); | |
319 | p.setRenderHint(QPainter::Antialiasing, false); | |
320 | ||
321 | p.setPen(axis_pen_); | |
322 | p.drawLine(QPointF(pp.left(), y), QPointF(pp.right(), y)); | |
323 | ||
324 | p.setRenderHint(QPainter::Antialiasing, was_antialiased); | |
325 | } | |
326 | ||
327 | void Trace::add_color_option(QWidget *parent, QFormLayout *form) | |
328 | { | |
329 | using pv::widgets::ColorButton; | |
330 | ||
331 | ColorButton *const color_button = new ColorButton( | |
332 | TracePalette::Rows, TracePalette::Cols, parent); | |
333 | color_button->set_palette(TracePalette::Colors); | |
334 | color_button->set_color(base_->color()); | |
335 | connect(color_button, SIGNAL(selected(const QColor&)), | |
336 | this, SLOT(on_coloredit_changed(const QColor&))); | |
337 | ||
338 | form->addRow(tr("Color"), color_button); | |
339 | } | |
340 | ||
341 | void Trace::paint_hover_marker(QPainter &p) | |
342 | { | |
343 | const View *view = owner_->view(); | |
344 | assert(view); | |
345 | ||
346 | const int x = view->hover_point().x(); | |
347 | ||
348 | if (x == -1) | |
349 | return; | |
350 | ||
351 | p.setPen(QPen(QColor(Qt::lightGray))); | |
352 | ||
353 | const pair<int, int> extents = v_extents(); | |
354 | ||
355 | bool was_antialiased = p.testRenderHint(QPainter::Antialiasing); | |
356 | p.setRenderHint(QPainter::Antialiasing, false); | |
357 | p.drawLine(x, get_visual_y() + extents.first, | |
358 | x, get_visual_y() + extents.second); | |
359 | p.setRenderHint(QPainter::Antialiasing, was_antialiased); | |
360 | } | |
361 | ||
362 | void Trace::create_popup_form() | |
363 | { | |
364 | // Clear the layout | |
365 | ||
366 | // Transfer the layout and the child widgets to a temporary widget | |
367 | // which we delete after the event was handled. This way, the layout | |
368 | // and all widgets contained therein are deleted after the event was | |
369 | // handled, leaving the parent popup_ time to handle the change. | |
370 | if (popup_form_) { | |
371 | QWidget *suicidal = new QWidget(); | |
372 | suicidal->setLayout(popup_->layout()); | |
373 | suicidal->deleteLater(); | |
374 | } | |
375 | ||
376 | // Repopulate the popup | |
377 | widgets::QWidthAdjustingScrollArea* scrollarea = new widgets::QWidthAdjustingScrollArea(); | |
378 | QWidget* scrollarea_content = new QWidget(scrollarea); | |
379 | ||
380 | scrollarea->setWidget(scrollarea_content); | |
381 | scrollarea->setWidgetResizable(true); | |
382 | scrollarea->setContentsMargins(0, 0, 0, 0); | |
383 | scrollarea->setFrameShape(QFrame::NoFrame); | |
384 | scrollarea->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff); | |
385 | scrollarea_content->setContentsMargins(0, 0, 0, 0); | |
386 | ||
387 | popup_->setLayout(new QVBoxLayout()); | |
388 | popup_->layout()->addWidget(scrollarea); | |
389 | popup_->layout()->setContentsMargins(0, 0, 0, 0); | |
390 | ||
391 | popup_form_ = new QFormLayout(scrollarea_content); | |
392 | popup_form_->setSizeConstraint(QLayout::SetMinAndMaxSize); | |
393 | ||
394 | populate_popup_form(popup_, popup_form_); | |
395 | } | |
396 | ||
397 | void Trace::populate_popup_form(QWidget *parent, QFormLayout *form) | |
398 | { | |
399 | QLineEdit *const name_edit = new QLineEdit(parent); | |
400 | name_edit->setText(base_->name()); | |
401 | connect(name_edit, SIGNAL(textChanged(const QString&)), | |
402 | this, SLOT(on_nameedit_changed(const QString&))); | |
403 | form->addRow(tr("Name"), name_edit); | |
404 | ||
405 | add_color_option(parent, form); | |
406 | } | |
407 | ||
408 | void Trace::on_name_changed(const QString &text) | |
409 | { | |
410 | /* This event handler is called by SignalBase when the name was changed there */ | |
411 | (void)text; | |
412 | ||
413 | if (owner_) { | |
414 | owner_->extents_changed(true, false); | |
415 | owner_->row_item_appearance_changed(true, false); | |
416 | } | |
417 | } | |
418 | ||
419 | void Trace::on_color_changed(const QColor &color) | |
420 | { | |
421 | /* This event handler is called by SignalBase when the color was changed there */ | |
422 | (void)color; | |
423 | ||
424 | if (owner_) | |
425 | owner_->row_item_appearance_changed(true, true); | |
426 | } | |
427 | ||
428 | void Trace::on_error_message_changed(const QString &msg) | |
429 | { | |
430 | (void)msg; | |
431 | ||
432 | if (owner_) | |
433 | owner_->row_item_appearance_changed(false, true); | |
434 | } | |
435 | ||
436 | void Trace::on_popup_closed() | |
437 | { | |
438 | popup_ = nullptr; | |
439 | popup_form_ = nullptr; | |
440 | } | |
441 | ||
442 | void Trace::on_nameedit_changed(const QString &name) | |
443 | { | |
444 | /* This event handler notifies SignalBase that the name changed */ | |
445 | base_->set_name(name); | |
446 | } | |
447 | ||
448 | void Trace::on_coloredit_changed(const QColor &color) | |
449 | { | |
450 | /* This event handler notifies SignalBase that the color changed */ | |
451 | base_->set_color(color); | |
452 | } | |
453 | ||
454 | void Trace::on_create_marker_here() const | |
455 | { | |
456 | View *view = owner_->view(); | |
457 | assert(view); | |
458 | ||
459 | const Ruler *ruler = view->ruler(); | |
460 | QPoint p = ruler->mapFrom(view, QPoint(context_menu_x_pos_, 0)); | |
461 | ||
462 | view->add_flag(ruler->get_absolute_time_from_x_pos(p.x())); | |
463 | } | |
464 | ||
465 | } // namespace trace | |
466 | } // namespace views | |
467 | } // namespace pv |